Unit 5 - Midterm Exam Review - 24-25

Front

What is the electron configuration for chlorine?

Back

1s² 2s² 2p⁶ 3s² 3p⁵

Front

What element corresponds to the electron configuration notation 1s² 2s² 2p⁶ 3s² 3p⁵?

Back

Chlorine

Front

How many valence electrons does Group 15 have?

Back

5

Front

What does the principal quantum number indicate?

Back

The size of the orbital.

Front

What is the relationship between wavelength and energy?

Back

The shorter the wavelength, the higher the energy and frequency.

Front

What is the electron configuration for selenium?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁴

Front

What is the maximum number of electrons in the second energy level?

Back

8 electrons.

Front

What is the shape of an s orbital?

Back

Spherical.

Front

What is the shape of a p orbital?

Back

Dumbbell-shaped.

Front

What is the significance of the angular momentum quantum number?

Back

It determines the shape of the orbital.